linux-kernel - decompress.c:undefined reference to `_

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Message-ID: <202109302242.ZzrkTWcZ-lkp@intel.com>
Date:   Thu, 30 Sep 2021 22:26:46 +0800
From:   kernel test robot <lkp@...el.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Randy Dunlap <rdunlap@...radead.org>
Subject: decompress.c:undefined reference to `__decompress'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   02d5e016800d082058b3d3b7c3ede136cdc6ddcb
commit: 665d8d58761cba41147fe7e98e2ceed1cbf603a2 powerpc/akebono: Fix unmet dependency errors
date:   8 months ago
config: powerpc64-buildonly-randconfig-r003-20210929 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=665d8d58761cba41147fe7e98e2ceed1cbf603a2
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 665d8d58761cba41147fe7e98e2ceed1cbf603a2
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   powerpc-linux-ld: arch/powerpc/boot/wrapper.a(decompress.o): in function `partial_decompress':
>> decompress.c:(.text+0x1f0): undefined reference to `__decompress'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (32403 bytes)